Download or read book An investigation into biological treatment systems for landfill leachate written by Lindsay Julian Strachan and published by . This book was released on 1999 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploration of Biological Treatment Systems for the Removal of Persistent Landfill Leachate Contaminants and Nanoparticles written by Francisco Gomez-Rivera and published by . This book was released on 2011 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: The integrity of groundwater sources is constantly threatened by contaminant plumes generated by accidental gasoline leakages and leachates escaping landfills. These plumes are of concern due to their proven toxicity to living organisms. Aromatic and chlorinated hydrocarbons, volatile fatty acids, phenols, and ammonia have been found in these leachates. In addition, benzene, toluene, and xylenes (BTX) are major components of gasoline. The lack of oxygen in groundwater makes anaerobic bioremediation desired for the treatment of groundwater contaminated with BTX and chlorinated solvents. With the objective of finding microorganisms capable of BTX and cis-dichloroethylene (cis-DCE) degradation under anaerobic conditions for their use in permeable reactive barriers, different inocula were tested in batch experiments. Toluene was rapidly degraded by several inocula in the presence of alternative electron acceptors. Benzene and m-xylene were eliminated by few of the inocula tested after incubation periods ranging from 244 to 716 days. cis-DCE was highly recalcitrant as no degradation was observed over 440 days. Biological processes have been successfully applied for the treatment of landfill leachates as well. In an effort to provide an effective and economical alternative, an anaerobic-aerobic system was evaluated using a synthetic media simulating the organic and ammonia content of real leachates. The removal of the organic content reached 98% in an upflow anaerobic sludge blanket reactor, and resulted in the formation of methane. During the aerobic process, in an innovative down-flow sponge reactor, ammonia was highly transformed to nitrite and nitrate. Complete nitrification was eventually achieved. The capacity of current wastewater treatment plants for removing nanoparticles has been questioned during the last years. Nanoparticles have been incorporated into numerous applications and their presence in wastewater seems to be inevitable. A laboratory-scale secondary treatment system was set-in to study the behavior of cerium and aluminum oxide nanoparticles during wastewater treatment. The nanoparticles were highly removed, suggesting that secondary treatment is suitable for their elimination. The removal of these nanoparticles was influenced by the pH and organic content of the wastewater. Aluminum nanoparticles proved to be toxic; however the performance of the system for eliminating the organic content was recovered over time.
Download or read book Anaerobic Digestion Processes written by Nigel Horan and published by Springer. This book was released on 2018-04-18 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new application processes in the context of anaerobic digestion (AD), such as phosphorus recovery, microbial fuel cells (MFCs), and seaweed digestion. In addition, it introduces a new technique for the modeling and optimization of AD processes. Chapters 1 and 2 review AD as a technique for converting a range of organic wastes into biogas, while Chapter 3 discusses the recovery of phosphorus from anaerobically digested liquor. Chapters 4 and 5 focus on new techniques for modeling and optimizing AD. Chapters 6 and 7 then describe the state of the art in AD effluent treatment. The book’s final three chapters focus on more recent developments, including microbial fuel cells (MFCs) (Chapter 8), seaweed production (Chapter 9), and enzyme technologies (Chapter 10).
Download or read book Waste Management Concepts Methodologies Tools and Applications written by Management Association, Information Resources and published by IGI Global. This book was released on 2019-12-06 with total page 1680 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the world’s population continues to grow and economic conditions continue to improve, more solid and liquid waste is being generated by society. Improper disposal methods can not only lead to harmful environmental impacts but can also negatively affect human health. To prevent further harm to the world’s ecosystems, there is a dire need for sustainable waste management practices that will safeguard the environment for future generations. Waste Management: Concepts, Methodologies, Tools, and Applications is a vital reference source that examines the management of different types of wastes and provides relevant theoretical frameworks about new waste management technologies for the control of air, water, and soil pollution. Highlighting a range of topics such as contaminant removal, landfill treatment, and recycling, this multi-volume book is ideally designed for environmental engineers, waste authorities, solid waste management companies, landfill operators, legislators, environmentalists, policymakers, government officials, academicians, researchers, and students.
Download or read book Constructed Wetlands for the Treatment of Landfill Leachates written by George Mulamoottil and published by Routledge. This book was released on 2018-12-19 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constructed wetlands are proving to be the best natural treatment system for landfill leachates. Most of the contaminants in landfill leachates are degraded in treatment wetlands. Potential for long-term sustainability and significant cost savings are attractive features of this eco-technology. Documentation of the experience in this use of constructed wetlands has been limited. Constructed Wetlands for the Treatment of Landfill Leachates is the first compilation of the results of research from North America and Europe. Originally presented at an international symposium, this collection of papers offers the most recent research findings from the leading researchers in this new and innovative natural treatment system. Specific issues addressed in the text include: leachate characteristics, and the potential for treatability by constructed wetlands wetland treatment, processes and transformation use of constructed wetlands in cold climatic conditions assessment of the tolerance of wetland plants to the toxicity of leachates role of plants in the treatments of leachates integrated wetland systems performance of different wetland treatment systems cost comparisons of wetland technology vs. traditional treatment technologies The potential for environmental contamination due to leachates from landfills is increasing, and there is an urgent need to find ways and means to treat leachates in a sustainable way Constructed Wetlands for the Treatment of Landfill Leachates will provide an invaluable source of information on the subject for scientists, engineers, practitioners, policy makers, and regulatory officials.
Download or read book Biological Wastewater Treatment written by C. P. Leslie Grady Jr. and published by CRC Press. This book was released on 2011-05-09 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following in the footsteps of previous highly successful and useful editions, Biological Wastewater Treatment, Third Edition presents the theoretical principles and design procedures for biochemical operations used in wastewater treatment processes. It reflects important changes and advancements in the field, such as a revised treatment of the micr
Download or read book Wastewater Engineering Advanced Wastewater Treatment Systems written by Hamidi Abdul Aziz and published by IJSR Publications. This book was released on 2014-04-01 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the global population grows and many developing countries modernize, the importance of water supply and wastewater treatment becomes a much greater factor in the welfare of nations. Clearly, in today’s world the competition for water resources coupled with the unfortunate commingling of wastewater discharges with freshwater supplies creates additional pressure on treatment systems. Recently, researchers focus on wastewater treatment by difference methods with minimal cost and maximum efficiency. This volume of the Wastewater Engineering: Advanced Wastewater Treatment Systems is a selection of topics related to physical-chemical and biological processes with an emphasis on their industrial applications. It gives an overview of various aspects in wastewater treatments methods including topics such as biological, bioremediation, electrochemical, membrane and physical-chemical applications. Experts in the area of environmental sciences from diverse institutions worldwide have contributed to this book, which should prove to be useful to students, teachers, and researchers in the disciplines of wastewater engineering, chemical engineering, environmental engineering, and biotechnology. We gratefully acknowledge the cooperation and support of all the contributing authors.
Download or read book Leachates written by Maria R. Mattox and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In chapter one by Antoine P Trzcinski, Ph.D., a simulated Organic Fraction of Municipal Solid Waste (OFMSW) was treated in an anaerobic two-stage membrane process in order to develop and optimise said process, effectively allowing for improvement upon the current performances obtained with single stage designs. In chapter two, Huu Tap Van and Van Tuyen Trinh present a study with the intent to improve current methods of removal of organic compounds from landfill leachate by Peozone. In chapter three by Hamidi Abdul Aziz and Hossein Farraji, main hazardous compounds of LL and their expected effects on the environment are introduced, as well as plant-based treatment methods. Next, chapter four by Adekunle A Bakare, Chibuisi G Alimba, Titilayo Hassan, Ebenezer O Ajayi, and Akindayo A Sowunmi explores the 96 h median lethal toxicity and cytogenotoxicity of a sawmill wood leachate from a sawmill dumpsite at Ibadan, Nigeria in Clarias gariepinus were investigated, providing further research on the DNA damaging potential of sawmill wood leachate (SWL) in aquatic vertebrates.
Download or read book Pollution Control Technology for Leachate from Municipal Solid Waste written by Zhao Youcai and published by Butterworth-Heinemann. This book was released on 2018-07-21 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollution Control Technology for Leachate from Municipal Solid Waste explores the physical, chemical and biological factors that produce leachate and technological solutions for its control. The book introduces the integrated and pre-treatment leachate treatment processes that are necessary to deal with the variations of pollutants in leachate. Real world case-studies are provided to illustrate these treatment processes, along with leachate treatment engineering process design and the construction of municipal solid waste incinerator power plants. This book will be of particular interest to Civil, Chemical and Environmental Engineers, but will also be ideal for Environmental Scientists. Provides quantity and quality prediction models, along with properties of effluent concentrated leachate liquid Includes physical and chemical treatment processes for leachate, including ammonia nitrogen removal using struvite precipitation, crystal variation and microstructure of the struvite, etc. Covers leachate treatment engineering processes for design and construction of treatment plants
Download or read book Sanitary Landfilling Process Technology and Environmental Impact written by Thomas Christensen and published by Elsevier. This book was released on 2012-12-02 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sanitary Landfilling: Process, Technology, and Environmental Impact is a collection of essays that discusses the role of landfilling in solid waste management. The book presents the approach in the principles of landfilling and the basic biochemical processes in landfills. The text describes the landfill hydrology and leachate production. It discusses the design and construction of liner systems and the surface capping with natural liner materials. The section that follows describes the soil and refuse stability in sanitary landfills. The book will provide valuable insights for engineers, environmentalists, students, and researchers in the field of solid waste management.
Download or read book Control and Treatment of Landfill Leachate for Sanitary Waste Disposal written by Aziz, Hamidi Abdul and published by IGI Global. This book was released on 2015-12-02 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Municipal solid waste (MSW) disposal is an ever-increasing problem in many parts of the world, especially in developing countries. To date, landfilling is still the preferred option for the disposal and management of MSW due to its low-cost operation. While this solution is advantageous from a cost perspective, it introduces a high level of potential pollutants which can be detrimental to the local environment. Control and Treatment of Landfill Leachate for Sanitary Waste Disposal presents research-based insights and solutions for the proper management and treatment of landfill leachate. Highlighting relevant topics on emerging technologies and treatment innovations for minimizing the environmental hazards of waste disposal, this innovative publication contributes to filling in many of the gaps that exist in the current literature available on leachate treatment. Waste authorities, solid waste management companies, landfill operators, legislators, environmentalists, graduate students, and researchers will find this publication beneficial to their professional and academic interests in the area of waste treatment and management.
Download or read book Manual written by and published by . This book was released on 1995 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pollution Control and Resource Recovery written by Zhao Youcai and published by Butterworth-Heinemann. This book was released on 2016-11-18 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollution Control and Resource Recovery: Municipal Solid Wastes at Landfill provides pollution control and resource reuse technologies that cover the research and development achievements gained in recent years, providing the most up-to-date information on an emerging field in solid waste management. Provides technology and methods for the recycling of aged refuse from closed landfills Includes leachate generation processes in municipal solid waste landfills Presents novel approaches to landfilling for leachate and methane control, covering the research and development achievements gained in recent years
Download or read book Landfill leachate treatment with particular reference to an aerobic biological treatment system written by Jeremy P. Fox and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sewage and Landfill Leachate written by Marco Ragazzi and published by Apple Academic Press. This book was released on 2021-03-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title includes a number of Open Access chapters. This new book provides a multiperspective look at research into many elements of remediating environmental hazards connected to sewage and landfill leachate. Sewage and landfill leachate treatments include various processes that are used to manage and dispose of the liquid portions of solid waste. Untreated leachate and sewage are hazards to the environment if they enter the water system. The goal of treatment is to reduce the contaminating load to the point that leachate and sewage liquids may be safely released into groundwater, streams, lakes, and the ocean. Around the world, however, huge volumes of contaminated water from sewage and landfill leachate is still pumped directly into water systems, especially in the world's developing nations. Aside from the damage to marine environments and fisheries that this causes, it also jeopardizes the world's vulnerable water resources. This compendium volume explores effective sewage management, which is essential for nutrient recycling and for maintaining ecosystem integrity. It looks at a range of technologies that are available for the treatment of sewage and landfill leachate. The editor, himself a respected and experienced researcher in this field, includes chapters that cover biological treatments, reverse osmosis, and chemical-physical processes. This volume offers important research that will help us both assess our existing treatment facilities, as well as build better, more effective ones for the future.
Download or read book Combination of the Biological and the Photocatalytic Methods in the Process of Municipal Landfill Leachate Treatment written by Jaroslaw Wiszniowski and published by . This book was released on 2004 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research was devoted to the study and development approach of a new detoxification technique that combines photocatalytic and biological processes for the treatment of nonbiodegradable organics as well as efficient N removal from the landfill effluents. The humic acid was used as model compound of non-biodegradable organics present in mature and stabilised landfill leachates. One of the important issues in the photocatalytic processis the adsorption of the organic compound on the surface of the semiconductor T. He effect of pH and inorganic salts such as NaHCOl, NaCl, NazSO+N, azHPO+( so-called inorganic matrix) commonly found in leachates on adsorption and photoreactivity of has were assessed. The research were caried out at laboratory scale in Solar Box fitted with Xenon lamp (LCA -France) and confirmed at pilot scaleu sing non-concentrating(CPC) collectors under solar radiation at Pataforma Solar de Almeria (PSA) in Spain. The photocatalytic process (UV/TiO, has proved to be effective for the decolourisation as well as mineralization of humic acids solution amounting to 100 ppm. The results obtained at both scales were very encouraging and the influence of the main parameters( such as catalyst concenftation, pH, matrix effect) governing photocatalytic mineralization of humic acids was determined. It was suggested that the solar photocatalysis for HA- rich waters in good insolation region could become economically competitive for conventionally applied methods such as coagulation/flocculation/filtration, ionic exchange or membrane filtration. Moreover, it was found that biodegradability of refractory organic substances such as HAs increases with irradiation time, which is of great importance in the case of the application of physicochemical-biological coupled system to wastewater treatment. In work, the efficiency of two different biological systems based on attached growth microorganisms used for biological oxidation treatment of organics as well as nitrogen removal from landfill leachate was reported. Both tested systems were efficient in degradation of a large fraction of the soluble organism matter from the leachate but a significant amount of remaining COD,mainly humic like substance was present in effluent. Consequently it was indicated that the removal of the residual COD fraction responsible for the specific yellow-brown colour is needed in order to meet discharge standards, The systems were successfull in removing high nitrogen concentrations by means of nitrrification/denitrification, but an external carbon source for enhancing denitrification was required. The fifth chapter of the thesis refers to the study of photocatalytic degradation of refractory organic remaining in the biological pre-treated leachate. Two photocatalytic systems using different irradiation sources i.e. Xe-lamp and Hg-medium pressure lamp, have been compared. The effect of inorganic matrix and catalyst dose on photocatalytic mineralization of organic and decolourization of leachate was determined. At the same time it was observed that biodegradability (BOD/COD) inceased in the leachate with reaction time. Moreover, the feasibility of post-biological treatment of organics remaining after photocatalytic stage was confirmed. The last part of the thesis gives conclusions drawn from the present works. Additionally, it presents prospects for research including proposal of a combined photocatalytic/physical and biological method in the integrated system to treat stabilised leachate from municipal landfill.
Download or read book Report of Progress MERL written by Municipal Environmental Research Laboratory and published by . This book was released on 1979 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
